Cannot install existing Avast acct to new PC with Windows11/ Microsoft

Can anyone give advice on how to manage the permissions? The apps download but won’t install.

see if support can advise while you wait for a reply on here https://support.avast.com/en-ww/index#pc

What errors are you getting as won’t install doesn’t give much information to work with.

What permissions are you talking about ?
None should be required just to install Avast - what Avast Program are you trying to install I assume Avast Premium Security ?

If so you can download the off-line installation file here - Premium Security: https://files.avast.com/iavs9x/avast_premier_antivirus_setup_offline.exe

What edition of windows 11 do you have?
Check whether the installation of applications other than the Microsoft Store is allowed. “Apps&Features” must be “Anywhere”

Thanks for that I wasn’t thinking Microsoft Store App.